SU500599A1 - Экспоненциальный звукопровод - Google Patents

Экспоненциальный звукопровод

Info

Publication number
SU500599A1
SU500599A1 SU1690176A SU1690176A SU500599A1 SU 500599 A1 SU500599 A1 SU 500599A1 SU 1690176 A SU1690176 A SU 1690176A SU 1690176 A SU1690176 A SU 1690176A SU 500599 A1 SU500599 A1 SU 500599A1
Authority
SU
USSR - Soviet Union
Prior art keywords
duct
telephone
sound
wall
conduit
Prior art date
Application number
SU1690176A
Other languages
English (en)
Russian (ru)
Inventor
Андрес Гюнтер
Додримонг Хорст
Касцынски Герт
Шенхофф Юрген
Тиль Бернхард
Original Assignee
Институт Фюр Нахрихтентехник (Инопредприятие)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт Фюр Нахрихтентехник (Инопредприятие) filed Critical Институт Фюр Нахрихтентехник (Инопредприятие)
Application granted granted Critical
Publication of SU500599A1 publication Critical patent/SU500599A1/ru

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
SU1690176A 1970-08-26 1971-08-13 Экспоненциальный звукопровод SU500599A1 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD14972270 1970-08-26

Publications (1)

Publication Number Publication Date
SU500599A1 true SU500599A1 (ru) 1976-01-25

Family

ID=5482879

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1690176A SU500599A1 (ru) 1970-08-26 1971-08-13 Экспоненциальный звукопровод

Country Status (6)

Country Link
BG (1) BG20058A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CS (1) CS177913B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2135804A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HU (1) HU163415B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SU (1) SU500599A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
YU (1) YU216271A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
BG20058A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-10-30
YU34074B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-31
CS177913B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-08-31
DE2135804A1 (de) 1972-03-02
HU163415B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-08-28
YU216271A (en) 1978-05-15

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